I would be VERY surprised if any type of a blue wave hit for many reasons. I'm not trying to be over confident by saying this either. Democrats for the last few years have done nothing but reinforce the reasons as to why Democrats should not be in power... the left has swung so far off the charts bypassing even extreme left status that it's not even funny. Every single issue is extreme, such as illegal immigration - they want open borders and we got to experience a little bit of that. Abortion- they want to legalize (if it's not already) partial birth abortion, PP and the selling of baby parts caught on tape... just to name a couple extremes. Then we have identity politics, politically correct speech, and shaming of everything under the sun. The divisions that they have created concerning race, gender, age, income levels and so on.
Then there is all of the rioting that took place and the burning down of cities, the hatred of LE and actually calling for their deaths- my God I could literally write a book ... and most recently these ridiculous claims against President Trump when it was THEM doing the meddling... Justice Kavanaugh...
You know, the interesting thing is the world is watching and taking notice. Most don't buy this globalist utopia. At all.
As a matter of fact I would not be a bit surprised if the Democratic Party ceased to exist in the near future. I'm not sure what they would morph into, but even their own can't stomach it anymore.